5 Blue Chip Dividend Stocks Make Up a Massive 75% of Warren Buffett's Portfolio Paul Morigi / Getty Images If any investor has stood the test of time, it’s Warren Buffett, and with good reason. For years, the “Oracle of Omaha” has had a rock star-like presence in the investing world, and his annual Berkshire Hathaway shareholders meeting draws thousands of loyal fans who are investors. Known for his long buy-and-hold strategies and his massive portfolio of public and private holdings, he remains one of th ...